Nutrition basics
Learning Center
Chronic bladder infection: Is there a cure?
Chronic bladder infection can be a painful, frustrating problem. Learn about causes and treatments.
Chemotherapy side effects: A cause of heart disease?
Chemotherapy side effects may include a risk of heart problems, including weakened heart muscle (cardiomyopathy) and heart rhythm problems (arrhythmia).
Chemotherapy and sex: Is sexual activity OK during treatment?
Chemotherapy and sex aren't mutually exclusive, as long as you're feeling up to it.
Chelation therapy for heart disease: Does it work?
Learn more about this debated treatment for heart disease.
Can you recommend a diet after gallbladder removal?
Should you follow a special diet to prevent problems after gallbladder surgery?
Can vitamin D protect against coronavirus disease 2019 (COVID-19)?
Find out what the research says about links between this key vitamin and the widespread viral infection.
Calcium supplements: Do they interfere with blood pressure drugs?
In large amounts, these supplements may affect certain blood pressure medicines.
Calcium supplements: A risk factor for heart attack?
Learn about the possible link between calcium supplements and heart attacks.
Caffeine: Is it dehydrating or not?
Caffeinated drinks usually won't dehydrate you, but water is still your best option.
COVID-19 variants: What's the concern?
The virus that causes COVID-19 has changed over time, which has affected prevention, diagnosis and treatment of COVID-19.
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